Additional encrypted directory that requires password every time

[Dave M G]

Ubuntu,

Following instructions on the web, I created the "Private" directory on 
my computer and set it to be encrypted. Seems to work fine and protects 
the contents of my directory from being read by non-logged in users.

However, I have files which I would like to protect just a little 
differently. With the "Private" directory, when I am logged into my 
account, the files in that directory behave essentially like any files 
in any other directory. That directory is opened automatically when I 
log in.

What I would like to have is another, separate, directory that requires 
a password to open even to me when I am logged in.

Ideally, not only could I "open" the directory with a password, I could 
set it as "closed" again when I am done with the files within it.

Is such a thing possible?

Any advice would be much appreciated.

Thank you.

-- 
Dave M G